From the analysis of the recent CCFR collaboration data for the struct
ure function xF(3)(X, Q(2)) (0.015<x<0.65 and 1.2 GeV2 <\Q(2)\<501 GeV
2) of the deep inelastic neutrino-nucleon scattering we conclude that
probably a part of the nucleon baryon number is due to the vacuum pola
rization effects.